Machine for attaching heels to boots and shoes.



No.878,675. PATENTED FEB. 11, 1908. v

V. SANDAHL.

MACHINE FOR ATTAQHING HEELS T0 BOOTS AND SHOES.

APPLIOATION FILED D30. a, 1906 6 SHEETS-SHEET 1.

Tn: unRRls PKTERS cm, wAsHlNcroN, 0.7:

PATENTED FEB. 11, 1908.

' V.SANDA,HL.

MACHINE FOR ATTAGHING HEELS T0 BOOTS AND SHOES.

APPLICATION FILED DEC. 6, 1906.

6 SHBETSSHEET 2.

THE NORRIS PETERS cm, wAsl-lmnnm, n. c.

PATENTED map-1 1, 190s. V.SANDAHL. MACHINE FOR ATTACHIN'G HEELS T0 BOOTSAND suoss.

APPLICATION IIL ED DEC. 6, 1906.

6 SHEETS-$111331 8.

'm: NORRIS PETERS co, WASHINGTON; n. c.

No. 878,675. v 'PATHNTED FEB. 11, 1908.

V..SANDAHL.

MACHINE FOR AT'TAGHING HEELS T0 BOOTS AND SHOES; I

APPIJOATION FILED DEC. 6, 190B.

8 SHBETSSHEET 4.

No. 878,675. 7 PATENTED FER-11} 1908.

' V. SANDAHL.

MACHINE FOR ATTAOHING HEELS TO BOOTS AND SHOES.

APPLICATION FILED p20. a, 1906.

e SHEETS-SHEET '5.

Tu: NORRIS rsrznsco vusmuamu, n. 04

'PATENTED FEB. 11, 1908.

- V.SANDA-HL.I 4 MACHINE FOR ATTAGHING 'HEELSITO BOOTS AND SHOES.

APPLICATION FILED DEC. 6, 1906.

e SHEETS-SHEET s.

UNITED STATES PATENT OFFICE.

VICTOR SANDAHL, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO L. WHEELER BEECHER,

OF NEW HAVEN, CONNECTICUT.

Specification of Letters Patent.

Patented. Feb. 11,19o8.

Application filed December 6. 1906- Serial No. 346.642.

To all whom it may concern.

Be it known that I, VIcToR SANDAHL, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Machines for Attaching Heels to Boots and Shoes; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1 a view in elevation of the right hand side of the machine. Fig. 2 a view in front elevation. Fig. 3 a broken view showingthe end of the awl-operating shaft with cam for lifting the heel compressor. Fig. 4

' a broken view partly in elevation and partly in section, showing the nail-guide in position beneath the awls and showing the awls in their normal or raised position. Fig. 5 a broken sectional. view showing the awls in their depressed position. Fig. 6 a View of the parts shown. in Fig. 4 with the awls raised and the nail-carrier partially entered beneath them. Fig. 7 a similar view showing the nail-carrier in its delivery position and the nails entered into the nail-guide. Fig. 8 an underside view of the nail-guide. Fig. 9 an underside View of the nail-guide showing the heel in place after punching. Fig. 10 a top or plan View of a portion of the machine showing the nail-guide in position beneath the awls and the nail-carrier withdrawn in full lines, and in its nail delivery position in broken lines. Fig. 11 a top or plan view of a portion of the machine showing the last and gripping jaws for holding the shoe beneath the drivers. Fig. 12 a View partially in section showing the nail-guide, carrier and heel in position beneath the drivers and resting upon the shoe, the last being in its raised position. Fig. 13 a broken sectional View showing the nails as having been driven home and clenched, and the top lift swung into position over them. Fig. 14 a broken sectional view showing the heel with the top lift applied thereto. Fig. 15 a sectional view of the awl clutch mechanism. Fig. 16 a broken end viewv of the clutch mechanism showing the means for throwing it into operation. Fig. 17 a sectional view on the line ab of Fig. 15.

Heels for boots and shoes are made and.

sold as articles of commerceto be attached to boots and shoes and then finished. These heels or blanks are preferably first punched to receive the attaching nails and then secured to the boot or shoe. These two operations are usually performed in separate machines, or in one machine by swinging the awls and drivers over the last; and the object of this invention is to combine, in one machine, mechanism for punching the heel, insetting the nails thereinto, driving the nails through theheel and clenching them onto the heel seat of the boot or shoe, and then applying the top lift to the heel, which swings from the awls to the drivers, whereby more rapid work may be performed; and the invention consists in the construction hereinafter described and particularly recited in the claims.

The construction of the machine will be best understood by a description of the several steps of the operation. The heel 2 is primarily formed in the usual manner generally formed from a series of layers tacked together and of the desired depth which varies according to the style of'boots and shoes to which they are to be applied.

The machine comprises an upright frame 3 supporting a shaft 4 which is driven by pulleys 5 the shaft 4'having a fixed pinion 6 meshing with a gear wheel 7 mounted to turn freely upon a shaft 8 but adapted to be connected therewith through the usual clutch mechanism 9 which I will term the driver clutch. At right angles to the shaft 4 is a shaft 10 driven through pulleys 11 which are adapted to be thrown into engagement with the shaft by the usual clutch mechanism which I will hereafter term the awl clutch and which comprises a sleeve 12 keyed to the shaft 10 and having flat outer surfaces 77. On the sleeve 12 is a cam sleeve 78 free to turn upon the sleeve 12 and formed with a cam stop 79 and with longitudinal recesses 80 to receive rollers 81, which, when the cam isturned, are forced into engagement with the pulley 11 so that the shaft 10 is turned thereby.

The heel or blank 2 is placed by the hel er at the right hand side of the machine etween two pairs of spring operated gripping jaws 13 and 14, one pair arranged in a plane above the other, and one pair longer than the other so as to firmly hold the heel, these jaws being attached to the underside of a nail guide-block 15 which is secured to the underside of the arm 16 of the frame upon a pivot screw 17. Below the heel when thus positioned is a heel compressor 18 mounted at the upper end of a screw 19 which enters a nut 20 mounted on a rod 21 connected to the outer end of a lever 22 by which it may be raised or lowered, as will hereinafter appear, the screw 19 passing through a lug 23 of the frame and the rod 21 passing through another lug 24. The upper end of the screw 19 below the compressor 18 may be graduated and a pointer 25 secured to the lug 23 so as to indicate at once to the eye the distance that the compressor will be raised, this distance corresponding to the thickness of the heels to be operated upon. With a heel thus located a treadle 26 is depressed by the helper causing the connecting rod 27 to throw the awl-clutch arm 28 outward and out of the path of the cam-stop 79, which is then turned by a spring 82 connected with the sleeves 12 and 78 causing the cam sleeve to move the rollers 81 or to ip the rollers 81 between the sleeve 12 and t e pulley 11 to turn the shaft 10. The upper end of the connecting rod 27 is not rigidly connected with the clutch arm 28 but is entered between lugs 83 and 84, and on the connecting rod 27 is a cam 29 which engages with a lug 30 on the frame so that as the connecting rod 27' is raised the upper end will be thrown out of engagement with the shoulders 83 and 84 so that the clutch arm 28 may return to its normal position under the action of a s ring 85 and have its upper end in place to e engaged by the cam stop 79 when that cam has made one complete revolution, so that even ifthe treadle 26 be held down the clutch will not be thrown into operative position until the treadle has been raised to bring the upper end of the connecting rod again into engagement with the clutch arm 28.

On the end of the shaft 10 is a cam 31 adapted to depress a rod 32 which at its lower end is connected with the lever 22 before referred to, to raise the heel compressor. At the opposite end of the shaft 10 is a crank pin 33 whlch operates a itman 34 connected with an awl-head 35w ich carries awls 36, more or less in number, and conforming in position to the shape of the heel, depressing this'head and forcing the awls through a nail-guide 37 in the nail block 15 and through the heel 2 which rests upon the compressor 18, the mechanism being so timed that the compressor 18 clamps the heel to the underside of the nail-guide before the awls enter the heel. The complete movement of the crank in lifts the awls after they have performe their function and operation and lowers the compressor. The heel having now been punched, remains inthe position above described, being still held by the clamping jaws 13 and .14. A nail-carrier 38 mounted on the end of an arm 39 pivoted to the frame and having nail holes 40 therein corresponding in position to the awls 36 and having those holes filled with nails 41 of usual construction, is swung into place over the nail-guide block 15 so that the nails 41 therein will stand over the corresponding holes in the heel, the nails 41 having the usual heads 42.

On the underside of the nail-carrier is a slide 43 having perforations corresponding to the nail holes but normally moved forward out of line therewith, the edge of the slide projecting beyond the edge of the nail-carrier 38. As this nail-carrier is forced into place by a helper the edge of the slide strikes the frame in advance of the carrier, so that its perforations register with the nail holes 40, and as the nail-carrier reaches its home position, these perforations permit the nails to drop through them and into the nail-guide and the points perha s enter the holes made by the awls in the hee 2. The arm 39 is then swung back to be refilled with nails and the nail-guide block 15 still carrying the heel is swung upon its pivot 17 one quarter of a circle so as to bring it to the front of the machine beneath a driving head 44 carrying drivers 45 positioned the same as were the awls 36. This driving head 44 is raised and lowered by means of a pitman 46 operated by a crank pin 47 on the shaft 8, this shaft being set in motion by means of a treadle 48 operating a rod 49 extending into engagement with the driver clutch 9 so as to cause the shaft 8 to be turned in the same way as before described with reference to the shaft 10 and to make but one complete revolution. The boot or shoe 50 to have the heel attached is placed upon a last 51 mounted upon the upper end of a last post 52 which is vertically adjustable by a nut 53 on a slide 54 which is pivoted upon the top of a bed 55 arranged at the upper end of a post 56 so that it may be moved back and forth, or right and left, by hand. The post 56 is connected by a link 57 with a lever 58 mounted at its forward end in the frame and connected at its rear end with a rod 59 which extends upward into engagement with a rocking lever 60 which is rocked by a cam 61 on the shaft8. The shoe having been applied while the last is in its withdrawn position, the last is forced inward carrying the heel cap between gripping jaws 62 pivoted on a slide 63 formed with a bracket 64 which extends downward and is clamped to the lug 23 by set screws 65 so that it may be adjusted vertically, the slide 63 having a tail 66 connected with a screw 67 by which it may be turned to move the jaws 62 to the right or left, while beneath the slide 63 ,7 is a clamping screw 68. This brings the heel seat directly in line with the heel held by the heel carrier.

Pressure .upon the treadle 48 through the rod 49 operates the clutch mechanism, and permits the shaft 8 to make one complete revolution. The first movement of this shaft operates the rock shaft 60 so as to lift the last and force the shoe into close engagement with the heel carried by the heel carrier. The continued movement of the shaft 8 forces the driving head 44 downward and the drivers 45 through the nail guide 15 onto the nails 41 which have been transferred thereto, and drives them home through the heel and heel seat onto the iron last on which they are clenched, the heads of the nails projecting beyond the upper lift. As the shaft 8 completes its movement, the last descends, dropping the shoe with the heel attached, slightly below the nail-guide, the spring arms of which yield to permit it to be withdrawn. This nail-guide isnow'moved back to its former position; and it may here be noted that this guide is connected with the frame by a spring 69 so arranged that it operates to hold the nail-carrier in its two positions against stops 70 and 71 arranged adjacent to its two points of rest. Pivoted to the right of the driver is an arm 72 carrying a jaw 73 with spring fingers 74 which receive the top lift, and after the heel is nailed to the last is moved outward and the arm is swung around so that the top lift stands over the heel and in line with it. When this top lift is in place the treadle 48is again depressed, again throwing the driving mechanism into operation causing the last to come up forcing the heel with its nail heads into engagement with the top lift, thereby attaching the top lift to the heel. After this operation has taken place, the last is withdrawn, the shoe removed, and a newshoe placed thereon, and the operation repeated, the operator driving the nails and applying the top lift, while the helper at the right of the machine is filling the nail-carrier and punching the holes preparatory to receiving the nails. Preferably a gage 75 will be connected with the frame and a pointer 76 connected with the last post 52 to indicate the extent of vertical movement of the post so that it may be readily seen to what extent the post shall be adjusted vertically to accommodate holes of different heights. It will thus be seen, that while the two operations of punching and driving take place independent of each other,

.thetwo men at the machine are working at the same time. The helper feeds the heel blanks to the awls and punches them and swings the nail-carrier into place to transfer the nails therefrom to the nail-guide. After this operation takes place, he swings the nailguide with the heel blank held thereby to the operator in front of the machine, who has lift to the heel.

and sets in motion the driving mechanism which drives the nails home and clenches them, and he then returns the nail-guide to the helper and subsequently applies the top It will thus be seen that one operator and a helper may run the machine with great rapidity and effectiveness.

While the driving operation is taking place, the helper is filling the nail-carrier, and while the helper is punching the heel the arranged the shoe beneath it and the drivers operator is applying the toplift and preparing another boot or shoe to receive its heel.

I claim 1. In a machine for attaching heels to boots and shoes, the combination with independently arranged awl mechanism and driving mechanism, of a nail-guide, means connected therewith for holding a heel blank, said nail-guide pivotally mounted on the frame whereby it may be turned to present the same successively beneath the awls and beneath the drivers, substantially as dedescribed.

2. In a machine for attaching heels to boots and shoes comprising independently arranged awl mechanism and driving mechanism, a nail guide arranged to swing from one to the other means connected therewith to carry a heel blank, and a nail-carrier adapted to swing over the nail-guide and deliver nails thereto, substantially as described.

3. In a machine for attaching heels to boots and shoes, comprising a single frame awl mechanism arranged therein, a vertically movable heel compressor arranged beneath the awls, means for adjusting said compressor to different lengths, independently arranged nail driving mechanism, a vertically movable last beneath the same, and means for adjusting said last to different elevations, combined with a nail-guide adapted to support a heel blank and present the same beneath the awls and beneath the driver, and means for operating the awls and drivers, substantially as described.

4. In a machine for attaching heels to boots and shoes comprising a single frame, an awl head mounted therein and carrying downwardly projecting awls, a vertically movable heel compressor arranged beneath said awls, a nail-driver, a vertically movable last arranged beneath said driver, two shafts one operating the awls and heel compressor, and the other the driver, and a nail-guide adapted to support a heel blank and. successively present 'the'sarne beneath the awls and beneath the driver, substantially as described.

5. In a machine for attaching heels to boots and shoes comprising a single frame, an awl head mounted therein and carrying downwardly projecting awls, a vertically movable heel compressor arranged beneath the awls, a shaft, means carried thereby for operating the awl head, the compressor including clutch mechanism for coupling the shaft for movement, a nail driver, and a vertically movable last, a single shaft and means thereon for operating the driver and the last including clutch mechanism by which the mechanism is coupled to the shaft, and a nail-guide adapted to support a heel blank and successively present the same beneath the awls and beneath the drivers, substant-ially as described.

6. 'In a machine for attaching heels to boots and shoes, the combination with awl mechanism and driving mechanism, a heel compressor beneath the awl mechanism, means for forcing the awls downward and the compressor upward, a last beneath the driving mechanism and movable back and forth and vertically beneath the same, and a nailguide adapted to support a heel blank and present the same beneath the awls and. adapted to be turned to a position beneath the drivers, substantially as described.

7. In a machine for attaching heels to boots and shoes, the combination with awl mechanism and driving mechanism, a heel compressor beneath the awl mechanism,

means for forcing the awls downward and the compressor upward, a last movable back and forth and vertically beneath the driving mechanism, a nail-guide adapted to support a heel blank and present the same beneath.

the awls and to be turned to a position beneath the drivers, and a top lift carrying arm adapted to swing over said last, substantially as described.

8. In a machine for attaching heels to bootsand shoes, comprising awls and naildrivers arranged in a single frame, independent shafts for operating said awls and drivers, a heel compressor beneath said awls, connections between the awl-operating shaft and the heel compressor for simultaneously operating both, and a nail-guide ada ted to support a heel blank and successive y present the same beneath the awls and beneath the drivers, substantially as described.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

VICTOR SANDAHL. Witnesses:

FREDERIO C. EARLE, (XL. WEED. 

